Materials Today Sustainability最新文献

{"title":"A study of the mechanism of the hydrogen evolution reaction catalysed by molybdenum phosphide in different media","authors":"N. Podrojková ,&nbsp;A. Gubóová ,&nbsp;M. Streckova ,&nbsp;R. Oriňaková","doi":"10.1016/j.mtsust.2025.101141","DOIUrl":"10.1016/j.mtsust.2025.101141","url":null,"abstract":"<div><div>The electrochemical decomposition of water is an effective method of green hydrogen production due to the purity and renewability of the process. The production of hydrogen occurs through the hydrogen evolution reaction (HER), and the process may be facilitated by using proper catalysts. Transition metal phosphides (TMPs), especially MoP, can potentially replace expensive Pt-based catalysts. However, most studies deal with experimental research without DFT simulations, and the process's mechanism is not described in detail. Therefore, this study aims to investigate the catalytic performance and reaction mechanism of an MoP catalyst for HER across all pH ranges and combine electrochemical analysis with simulations to gain deeper mechanistic insights. MoP surfaces with (101), (110) and (100) facets are prepared and investigated with experimentally synthesised MoP samples studied in acidic, alkaline, and neutral media. MoP catalyst exhibits superior HER activity in an alkaline media with charge transfer resistance (<em>Rct</em>) of 7.12 Ω. DFT results also showed that H₂O adsorption is preferred on MoP(101) and MoP(110) with adsorption energy (<em>ΔE</em>_<em>ad</em><em>)</em> of −0.93 eV and −1.21 eV, respectively. Based on experimental and DFT results, a proposed HER mechanism considers various MoP facets and different media.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101141"},"PeriodicalIF":7.1,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144099426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanical performance of extrusion-based two-part 3D-printed geopolymer concrete: A review of advances in laboratory and real-scale construction projects","authors":"Mustapha B. Jaji,&nbsp;Adewumi J. Babafemi,&nbsp;Gideon P.A.G. van Zijl","doi":"10.1016/j.mtsust.2025.101131","DOIUrl":"10.1016/j.mtsust.2025.101131","url":null,"abstract":"<div><div>3D printing of geopolymer is considered an alternative to cement-based concrete due to its sustainability and novel manufacturing techniques. Comparisons have been drawn between one-part and two-part 3D-printed geopolymer concrete (OP3DPGPC and TP3DPGPC, respectively). Some articles have projected OP3DPGPC to be user-friendly since it is excited with powdered activators. However, the embodied energy and the carbon emissions of liquid silicate reactants in TP3DPGPC are 70 % and 50 %, respectively, less than the solid silicate used in OP3DPGPC. Also, studies show that TP3DPGPC exhibits superior mechanical performance compared to OP3DPGPC. This study comprehensively reviews the advances in the laboratory-scale and real-scale development of extrusion-based TP3DPGPC, their material composition, constituents’ proportion, and mechanical performance. Data were collected from articles published on TP3DPGPC across renowned journals from 2017 to 2024 and internet sources to identify real-scale TP3DPGPC structures. The mechanical properties of TP3DPGPC available in the literature include compression, flexure, interlayer bond, tensile bond, direct tensile, and splitting tensile strength. These studies show that the mechanical performance of TP3DPGPC depends on the type and proportion of precursor(s), type and composition of the reactants, aggregate type, aggregate-to-binder ratio, activator-to-binder ratio, the molarity of NaOH, SiO₂/Na₂O ratio, water-to-binder ratio, water-to-solid ratio, liquid-to-solid ratio, additive types, fibre (type, content, and aspect ratio), and curing (type and conditions). Similarly, the mechanical performance of TP3DPGPC is dependent on the printer parameters, the configuration, and the loading direction. The data generated will serve as the basis for future studies and the prediction of mechanical performance. Finally, a review of the microstructure properties is conducted to justify the mechanical performance.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101131"},"PeriodicalIF":7.1,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144099526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbon emission, durability and application of solid waste based solidification material solidification soil","authors":"Benan Shu ,&nbsp;Guodong Zeng ,&nbsp;Maocong Zhu ,&nbsp;Keyi Qiu ,&nbsp;Yanfei Ren","doi":"10.1016/j.mtsust.2025.101135","DOIUrl":"10.1016/j.mtsust.2025.101135","url":null,"abstract":"<div><div>The present paper sets out a comparative analysis of carbon emission and economic benefit of different performance gradients solid waste based solidification material (SSM). The macro properties of SSM were the focus of systematic study, with the aim of gaining deeper insight into the response of the SSM to conditions such as freeze-thaw cycles, seawater erosion, dry-wet cycles and dry shrinkage. In order to facilitate this study, a range of analytical techniques were employed, including scanning electron microscopy (SEM), X-ray diffraction (XRD) and mercury intrusion porosimetry (MIP). The findings indicate that, in comparison with cement, the carbon emissions of SSM (A1) are diminished by 77.7 %, amounting to 190 kg/t, the carbon-performance ratio (24.4 kg/MPa), the cost-performance ratio (32.1RMB/MPa) and the carbon-cost ratio (0.76kg/RMB) are reduced by 86 %, 56 % and 68 % respectively. SSM demonstrated better performance in terms of freeze-thaw resistance, seawater erosion resistance and dry-wet resistance when compared to cement. The dry shrinkage value of SSM solidified soil was reduced by approximately 35 % at 40 days compared to cement solidified soil, due to compensatory shrinkage and a reduction in pores. In contrast to the relatively minor impact of seawater erosion and the moderate effects of the wet-dry cycle, freeze-thaw cycles have been shown to cause the most severe structural damage to the micro-structure of solidified soil. The conduction of durability tests resulted in increased porosity and the most probable aperture. The increase in pores and micro-structure leads to the attenuation of macroscopic mechanical properties of SSM solidified soil. The engineering application verified that with the content of SSM of 50 kg/m, 4.5 % and 3 %, the strength, bearing capacity and bending value of SSM modified soil were 1.9 MPa, 180 kPa and 158, respectively in deep mixing piles, shallow in-situ solidification, and roadbed modified soil field.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101135"},"PeriodicalIF":7.1,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High aspect ratio hierarchical carbon nanoplate/functionalized carbon nanotube scaffolds for scalable binder-free ultrafast-charging supercapacitors","authors":"Ohchan Kwon ,&nbsp;Jun Hyuk Bae ,&nbsp;Ju Yeon Kim ,&nbsp;Minsu Kim ,&nbsp;Yunseong Ji ,&nbsp;Jeonghun Kim ,&nbsp;Sang-Young Lee ,&nbsp;Dae Woo Kim","doi":"10.1016/j.mtsust.2025.101138","DOIUrl":"10.1016/j.mtsust.2025.101138","url":null,"abstract":"<div><div>Binder-free supercapacitors are effective in achieving rapid charging/discharging capabilities, high power/energy density, and potentially reduced manufacturing costs. In this study, hierarchical carbon nanoplates (HCN) fabricated through the carbonization of high aspect ratio, polycrystalline metal-organic framework nanoplates. These HCN structures are then hybridized with functionalized carbon nanotube (FCNT) scaffolds and applied as electrodes using a scalable shear-coating method, eliminating the need for binders. The synergistic effects of these components result in the capacitance of 206 F/g at 0.8 A/g and 148.8 F/g at 8 A/g with a retention of 72 % in half-cell setups, and a full symmetric cell capacitance of 126 F/g at 4 A/g and 76 F/g at 40 A/g with a retention rate of 61 %. The power and energy densities of the full cell were measured to be 3880 W/kg and 16.2 Wh/Kg, surpassing the upper bound for electrochemical capacitors. The high rate capability and capacitance are attributed to the well-designed architecture of the electrodes and the benefits of the carbon components. Specifically, the high aspect ratio of the HCN with the hierarchical pore structure enhances the active surface area and charge transport properties. Additionally, the increased intermolecular interactions within the FCNT phase create entangled scaffolds, imparting both conductive pathways and mechanical stability. The binder-free nature of the electrodes, complemented by the presence of HCN spacers in the FCNT matrix, expands pores and promotes the transfer of ion species. Importantly, the viscoelastic properties of the HCN/FCNT slurry enable electrode fabrication in large areas by a scalable coating method.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101138"},"PeriodicalIF":7.1,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailoring morphology-controlled bismuth vanadate composite with graphitic carbon nitride for photocatalytic H2 evolution","authors":"Oraya Leelaphuthipong ,&nbsp;Teera Butburee ,&nbsp;Kajornsak Faungnawakij ,&nbsp;Metta Chareonpanich ,&nbsp;Waleeporn Donphai","doi":"10.1016/j.mtsust.2025.101140","DOIUrl":"10.1016/j.mtsust.2025.101140","url":null,"abstract":"<div><div>Hydrogen energy serves as a significant and environmentally benign energy source. Photocatalytic water splitting, an exemplary alternative and eco-friendly process, is advantageous as it operates at lower temperatures and requires less energy. Investigations into the role of bismuth vanadate morphology—specifically non-uniform shapes (NS-BV), polyhedron (PD-BV), and nanoflakes (NF-BV)—alongside graphitic carbon nitride (GCN) revealed significant influences on hydrogen production through visible light-driven water splitting. The NF-BV/GCN catalyst demonstrated a remarkable hydrogen production rate of 86.62 μmol/g.h, surpassing the NS-BV/GCN, PD-BV/GCN, and pure GCN catalysts by factors of 1.35, 1.42, and 2.03, respectively. This enhanced performance was attributed to its heterostructure, which has a smaller band gap between the valence band of GCN and the conduction band of NF-BV. This configuration facilitates the transfer of photogenerated holes in the valence band of GCN to the photogenerated electrons in the conduction band of NF-BV. Additionally, a higher concentration of surface oxygen vacancies and defect sites on NF-BV trapped electrons, further inhibiting recombination and simultaneously separating electron-hole pairs, thereby significantly enhancing H₂ evolution.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101140"},"PeriodicalIF":7.1,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Two-dimensional transition metal-based MOFs for catalytic CO2 reduction and water splitting reactions: Recent insights from first principles calculations","authors":"Sajjad Hussain ,&nbsp;Abdulraheem K. Bello ,&nbsp;Shehu Mohammed ,&nbsp;Nur Allif Fathurrahman ,&nbsp;Abdulaziz A. Al-Saadi","doi":"10.1016/j.mtsust.2025.101136","DOIUrl":"10.1016/j.mtsust.2025.101136","url":null,"abstract":"<div><div>Efficient catalytic CO₂ reduction and water splitting are essential for mitigating greenhouse gas emissions and advancing sustainable energy solutions. However, the design of novel and efficient catalysts faces challenges most of the time due to the inadequate understanding of complex chemical mechanisms and feasible reaction pathways. In several cases, it is hard to construct reasonable catalytic pathways using experimental methods only. Therefore, understanding the detailed mechanisms at the atomistic level requires insights into the fundamental electronic and structural properties, as well as the thermodynamic nature of the catalytic materials used. From quantum mechanical to molecular dynamic scales, theoretical calculations can provide significant and useful information. Recent computational investigations have focused on designing highly efficient catalysts with large surface areas, excellent charge transfer capabilities, high stability, tunable porosity, and a tunable electronic structure. Transition metal-based two-dimensional (2D) organic frameworks (MOFs) can possess these properties and have demonstrated the ability to be used as efficient catalysts for CO₂ reduction reaction (CO₂RR) and water splitting processes. Theoretical calculations play a significant role in promoting our understanding of adsorption mechanisms over MOFs. This review summarizes computational advancements in using transition metal-based 2D MOF materials as novel photocatalysts, focusing on CO₂ reduction and water splitting reactions. The simulation methods, possible structural models, electronic properties, molecular thermodynamics, and reaction mechanisms have been thoroughly discussed. Finally, the challenges and possibilities are highlighted.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101136"},"PeriodicalIF":7.1,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing the sustainability of microalgae cultivation through biosensing technology","authors":"Adamu Yunusa Ugya ,&nbsp;Hui Chen ,&nbsp;Qiang Wang","doi":"10.1016/j.mtsust.2025.101139","DOIUrl":"10.1016/j.mtsust.2025.101139","url":null,"abstract":"<div><div>This comprehensive review shows that environmental challenges such as high water demand, high nutrient requirements, and energy-intensive nature of microalgae cultivation system must be addressed to fully realise sustainability. These challenges can be linked to problems such as water scarcity, nutrient pollution, and increased greenhouse gas emissions, which affect the sustainability of microalgae cultivation systems. The use of biosensing technology in microalgae cultivation systems is an emerging method that will advance the field of microalgae cultivation by providing real-time, precise monitoring and control of various cultivation parameters. This review critically investigates the prospects associated with the use of this technology in microalgae cultivation systems. The recent advances in biosensing technology, such as the development of highly sensitive and specific biosensors for detecting key metabolic indicators, environmental parameters, and growth conditions, were linked to the sustainability of microalgae cultivation systems. The review buttressed innovations such as lab-on-a-chip devices, nanotechnology-based sensors, and non-invasive optical sensing techniques which have been used to enhance the ability to monitor and optimise microalgae growth, productivity, and biochemical composition. The review also emphasises the role of emerging technologies such as artificial intelligence (AI), machine learning (ML), and the Internet of Things (IoT) in microalgal cultivation systems. These developments have the potential to enhance real-time data analysis, optimise cultivation strategies, and improve overall system efficiency. The review shows that despite the role of biosensing technology in microalgae cultivation systems, progress is limited by challenges that include accuracy and reliability, sensitivity, specificity, long-term stability, and integration with cultivation systems. The integration of AI, ML, IoT, and other biosensing technologies has the potential to address these challenges by providing more accurate and reliable data analysis, enhancing sensitivity and specificity, improving long-term stability, and seamlessly integrating with cultivation systems.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101139"},"PeriodicalIF":7.1,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the potentials of biohydrogen as an alternative energy source: Strategies, challenges and future perspectives","authors":"Fazil Qureshi ,&nbsp;Hesam Kamyab ,&nbsp;Saravanan Rajendran ,&nbsp;Dai-Viet N. Vo ,&nbsp;Natarajan Rajamohan ,&nbsp;Mohammad Yusuf","doi":"10.1016/j.mtsust.2025.101133","DOIUrl":"10.1016/j.mtsust.2025.101133","url":null,"abstract":"<div><div>Bio-hydrogen emerges as an environmentally friendly energy carrier, promising to diminish our reliance on fossil fuels. Employing biological approaches for hydrogen production aids in the dual objectives of waste management and energy generation. The economic viability of producing renewable bio-hydrogen from waste biomass is considerable, though the realization of extensive industrial-scale production remains an ongoing aspiration. This review underscores present viewpoints on the generation of bio-hydrogen as an alternative energy reservoir. The facilitation of bio-hydrogen production encompasses techniques like photolysis, fermentation, and electrochemical processes. To augment bio-hydrogen production, optimizing various influential production factors is imperative. Employing bioreactors with tailored designs and configurations can significantly enhance productivity. The incorporation of hybrid and novel strategies to bolster bio-hydrogen production, is recognized as a sturdy strategy. This comprehensive review highlights that biological methods, particularly photo and dark fermentation using various microorganisms, are the most prominent and promising techniques for sustainable bio-hydrogen production. While advancements in bioreactor design, genetic engineering, and the application of nano-materials (especially Ni and Fe) have improved yields, large-scale implementation remains hindered by economic and technological challenges, requiring further research and policy support.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101133"},"PeriodicalIF":7.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Zinc-spray-coated carbon fibres as lean anodes for low-cost zinc-ion batteries","authors":"Kudachchige Asanga G. de Alwis ,&nbsp;P. Sanju S. Panawala ,&nbsp;Zhenhuan Chen ,&nbsp;Dasun P.W. Guruge ,&nbsp;Chathushka D. Hettige Dharmasiri ,&nbsp;Courtney-Elyce M. Lewis ,&nbsp;Chao Zhang ,&nbsp;Joseph F.S. Fernando ,&nbsp;Konstantin L. Firestein ,&nbsp;Dmitri V. Golberg","doi":"10.1016/j.mtsust.2025.101137","DOIUrl":"10.1016/j.mtsust.2025.101137","url":null,"abstract":"<div><div>While moving towards sustainable Zn-ion batteries (ZIBs), it is crucial to research not only on their critical issues, such as dendrite growth, hydrogen evolution reaction (HER), and corrosion, but also on the sustainable utilization of spent materials. Lean anodes, which utilize reduced amounts of zinc, are pivotal in this context; however, the batteries reported in literature have yet to achieve superior performance levels. In this study we present a simple cost-effective approach of zinc spray coating onto carbon fibre substrate (SCZn) as a simplified lean anode production strategy while enhancing the performance of Zn-ion batteries. This SCZn anode demonstrates remarkable cyclability over 1000 cycles at 0.5 mA cm⁻² with a 0.5 mAh cm⁻² capacity, and 10 times the anodic depth of discharge (DOD) when compared to a standard Zn foil anode (FZn). Furthermore, the micro-scaled Zn particles embedded in the 3D structure of the carbon fibres effectively supress dendrite growth and enhance the charge transfer kinetics, as evidenced by lower polarization, less corrosion and favourable impedance. Full cell studies were carried out by pairing the SCZn anode with a cost-effective commercial V₂O₅-based cathode. The latter shows impressive performance with a 370 mAh g⁻¹ specific capacity at 0.1 A g⁻¹, and 270 mAh g⁻¹ with a capacity retention of 95 % over 760 cycles under current density of 1 A g⁻¹. The proposed anode preparation method is highly scalable, cost-effective and ultimately simple. This paves the way for long-life, efficient, and durable Zn-ion batteries, offering an opportunity to engineer sustainable solutions for future grid scale energy storage applications.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101137"},"PeriodicalIF":7.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable biowaste-derived carbon aerogel/MXene composite for mercury removal from water","authors":"Armanbek Nursharip ,&nbsp;Chingis Daulbayev ,&nbsp;Jakpar Jandosov ,&nbsp;Joseph C. Bear ,&nbsp;Rosa Busquets ,&nbsp;Vassilis J. Inglezakis ,&nbsp;Alzhan Baimenov","doi":"10.1016/j.mtsust.2025.101132","DOIUrl":"10.1016/j.mtsust.2025.101132","url":null,"abstract":"<div><div>Mercury is a major global health concern; it is widespread across all environmental media and it affects all forms of life. There is strong interest in materials that can effectively remove Hg from water. This study investigates a novel and sustainable approach for mercury removal that consist of macroporous aerogel composite derived from rice husk lignin and modified with MXene. The composite developed high specific surface area (320 m²/g) and remarkable potential for Hg²⁺ removal. Notably, 20 wt.% MXene modification increased the maximum adsorption capacity of the bare sorbent (lignin aerogel) from (82.4 mg Hg²⁺/g) to 135.8 mg Hg²⁺/g, which surpasses commercial adsorbents. The composite effectively removed Hg²⁺ even from tap water spiked with high metal concentrations (10 mg/L). These findings highlight the significance of lignin-MXene aerogels for real-world application in water purification and environmental remediation.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"31 ","pages":"Article 101132"},"PeriodicalIF":7.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}